...people rolling on the ground from amusement.

No way.

Stupid locals stay.

"Elite" or "educational" multilingualism: Luxembourg, Switzerland, Scandinavia, wealthy expat communities.
Here you're right, multiple languages usually travel alongside good schooling, healthcare access, nutrition, and social stimulation, because the whole bundle stems from the same underlying resource: a well-funded, high-quality education system and stable, prosperous society. This is exactly the profile that would score well on brain-age studies partly because of the languages and partly because of everything surrounding them.

"Circumstantial" or "necessity" multilingualism: this is actually the more common form of multilingualism worldwide, and it points the opposite direction.

Huge parts of India, Nigeria, Papua New Guinea, and plenty of post-colonial or highly fragmented linguistic regions have populations who speak three, four, even five languages simply because they live at the intersection of a home language, a regional trade language, a colonial administrative language, and a national language, entirely disconnected from wealth or educational quality, often the opposite, multilingualism there correlates with lower formal education and lower income, since it emerges from geographic and ethnic diversity, not from an expensive school system layering languages onto an already well-resourced child.

A migrant labourer speaking four languages out of survival necessity isn't in the same category as a Luxembourgish child in a well-funded lycée, even though both are technically "quadrilingual."

This is actually a well-known problem the dementia-onset research explicitly wrestles with: differences in study outcomes may be due to methodological limitations and confounding factors within studies such as immigration status and level of education, researchers flag immigration status specifically because immigrant multilinguals often have systematically different socioeconomic profiles (sometimes lower, sometimes higher depending on migration type) than the "naturally multilingual because of an excellent local school system" case, and lumping them together muddies what's actually driving any protective effect.

Like the PC came for typists.

Sure, lawyers are the worst, not AI's fault.

...why should I care?

Ditto if AI finds case-law faster, easier and cheaper for the lawyer's clients, why complain?

It's called progress.

Just asking.

Isn't ALL of Reddit 'old'?

Thought so.:-)

There's still Soprano.com, Alto.com and Baritone.com

It really is.

"They can stick their heads in the sand.." ...swamp.

Well, there was a typo in the antibiotic generation prompt fed to the lab machine.

Is that 100 billion transistors in that chip or are you just happy to see me?